Mark Leonard Singleton
CIK 1914936 · SVP & CFO · last filed 2026-04-14
"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.
Charts
Trading activity, where the exposure sits, and each trade against the stock price.
BVS price and trades
Daily close with each Form 4 filing on this company marked: green = open-market buy, red = open-market sale, purple = grants, exercises, gifts and other non-market transactions. Marker size scales with the dollar value.
Shares held
Shares owned after each reported transaction on this company (direct holdings as reported).
Open-market buying and selling
by monthDollar value of open-market purchases (code P, up) and sales (code S, down) across all companies, by filing month. Grants, exercises and gifts are excluded.
Exposure by company
latestMost recently reported shares × current price. Faded bars (*) have had no filing in 3 years, so the person may no longer hold them. Click a bar to chart that company.
Filer Profile
4721 EMPEROR BOULEVARD, SUITE 100
DURHAM, NC 27703
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| BVS | SVP & CFO | 177,333 | $13.49 | $2.39M | -$450.4K | 25 | 2026-04-14 |
Recent Filings · Page 3 of 3
28 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2024-04-11 | BVS | Notice (144) | −38,000 | -$198.0K | EDGAR |
| 2024-03-25 | BVS | Mixed | +13,084 | -$29.9K | EDGAR |
| 2024-03-22 | BVS | Grant (A) | — | $0 | EDGAR |
| 2023-06-22 | BVS | Grant (A) | — | $0 | EDGAR |
| 2023-04-12 | BVS | Grant (A) | — | $0 | EDGAR |
| 2023-03-27 | BVS | Sell (S) | −6,044 | -$7.7K | EDGAR |
| 2023-03-23 | BVS | Exer (M) | +18,625 | $0 | EDGAR |
| 2022-04-05 | BVS | Grant (A) | — | $0 | EDGAR |
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.